Creel



. F. LAMBACH Nov. 20, 195] CREEL 5 Sheets-Sheet l Filed Feb'. 8, 1945 Hum ATTORNEY F. LAMBACH Nov. 20, 1951 CREEL Filed Feb. s, 1945 5 Sheets-Sheet 2 INVENTOR f/ WTZ A MBACH ATTORNEY F. LAMBACH Nov. 20, 1951 CREEL 5 Sheets-sheet s Filed Feb. 8, 1945 INVENTOR /ZWZ AMBACH n?? ATTORNEY F. LAMBACH Nov. 20,'1951 CREEL 5 Sheets-Sheet 4 Filed Feb. 8, 1945 www @N vm ATTORNEY CREEL 5 Sheets-Sheet 5 File-d Feb. e, 1945 lNVENTOR flWTZ MBACH WW2-4 7' ATTORNEY Patented Nov. 20, 1951 "CREEL Fritz Lambach, Tenafly, N. J., assigner to Robert einer, Inc., Weehawken, N. J.

Application February 8, 1945, Serial No. 576,764 2 Claims. (Cl. 242-131) My invention relates to textilemachines, and more particularly to creels, which are customarily used in conjunction with warpers or beamers for the winding of yarn from bobbins on a beam.

Creels of this type are equipped with holding means for holding a plurality of bobbins and with carrying means for carrying a plurality of yarn tensioning devices or so-called tensions exerting a braking action on the yarns running from the bobbins to the beam in the warper or beamer.

An object of my invention is to provide a creel of above described type with a tension rack for carrying the yarn tensioning devices o r tensions, which may be readily brought into different positions relative to the holding means holding the bobbins.

Another object of my invention is Vto builda creel of above described type in such away that the tension rack carrying the yyarn tensioning devices does not comprise elements forming a part of the frame structure of the creel, so that the tension rack may be brought into different position without weakening the frame structure ofthe creel during such a displacement of the tension rack.

A further object of my invention is to provide a creel with means permitting an extremely ne and accurate control of the so-called"balloon of the yarn.

Still another object of my invention is to provide a creel, which may be readily adapted to various loads of bobbins for various winding operations.

A further object of my invention is to -improveupon the construction of creels as now ordinarily made.

My invention consists in certain novel features of creels as will be fully described hereinafter.

Further objects and advantages of the invention' will be apparent from the following disclosure of several embodiments thereof.

In the accompanying drawings is: Y

Fig. 1, a somewhat diagrammatical top plan view of a creel according to the invention,

Fig. 2, a front elevational view of the creel shown in Fig. 1, in an enlarged scale,

' Fig. 2a, a sectional view of a detail of the creel illustrating the controlling means of a stop motion,

Fig. 3, a sectional view taken on line 3--3 of Fig. 2,

Fig. 4, a top plan view of the first section of the creel shown in Fig. 1, in an enlarged scale,

Fig. 5, a sectional view taken on line 5-5 of Fig. 4,

Fig. 6, a top plan view of a different embodiment of a creel according to the invention,

Fig. 7, partly a front elevational view, partly a sectional vview of the creel shown in Fig. 6, taken on line 1-1 of Fig; 6, in an enlarged scale,

Fig. 8, a sectional view taken online 8--8 of Fig. 6, in an enlarged scale, and

Fig. 9, an elevational view of a detail of the creel shown in Fig. 7, in an enlarged scale.

Referring now to Figs. 1-5, 20 generally indicates a creel, which is composed of four sections I, II, III, IV detachably connected with each other at 22, 24, and 26. Each section comprises a supporting frame generally indicated by 281, 2811, 28111, and 281V, on either side of which a tension rack 'generally-indicated by 301, 3011, 30111, andf381V Vis shiftably mounted in a manner to bedescribed hereinafter. The iirst sectional supporting frame 281 atthe end of the creel opposite the warper or beamer (not shown) is of tapered shape, while the remaining sectional supporting frames 2811, 28111, 281V are substantially in the shape of a rectangle. For an understanding of the invention it is suiiicient to describe in detail the section I of the creel, as the sections II, III and IV are constructed according to the same principle as section I.

As best shown in Figs. 2 and 4, the sectional supporting frame 281 is built by longitudinal channels 32, 34, uprights 36, bracing members 38, and traverse channels 4D, 42 rigidly connected with each other in a suitable manner, for example by screws or rivets, so that this sectional supporting frame 281 forms a rigid structure or unit. Said supporting frame A281 is provided with two rows of vertical holding means or rods 44 connected to the upper and lower longitudinal channels 32, v54. Series of holders 46 for holding bobbins 48 (only one being shown in Fig. 4) may be attached to said vertical rods 44 in a manner known per se.

As best shown in Figs. 1 and 4, a rst transverse channel 50 and a second transverse channel 52 are mounted on top of the upper longitudinal channels of the sectional supporting frame 2811, which is of substantially the same construction as above described sectional supporting frame 281 and may be rigidly connected with the latter by screws 22. Likewise, as shown in Fig. 1, a similar transverse channel 54 is screwed to the upper longitudinal channels of the sectional supporting frame 28111, which may be rigidly connected with` the `sectional supporting frame 2811 by screws 24, and another. transverse channel 5B is secured to the top of the sectional supporting transverse channel 54 in conjunction with theV transverse channel 56 form spaced tracks for thev Y tension racks 30H, 39m and 381V respectively.M

There are no transverse connecting elemenisbetween the inner longitudinal channels 34atitlie bottom of the creel, so that trucks with-a load of bobbins to be placed on the' holders 4G of' the creel may be rolled without hindrance 'inte-.the inside space of the creel between the uprights 36.

Asbest shown inV Figs. 2, 4 and 5, each tension rack 304I is formed by an upper longitudinal channel 5B and a lower longitudinal channel 50 rigidly connected with each other by a row` of vertical rods or carrying means 62 passing through openings of the channels 58, G and held invposition by nuts screwed to the threaded ends of the rods. Series of yarn tensioning -dev-ices or so-called tensions 64 (only one being shown in Figs. 4 and may be attached to said vertical rods 52 of the tension rack 3|)I in a manner, known per se. Spaced hook-like engaging elements 66 are secured to the upper channel 58 of the tension rack at opposite endsthereof. Furthermore, a bracket `68 is secured to the front end of the upper channel 58, and another bracket 'l0 is secured to the lower channel EIL Said brackets 68 and are provided with registering holes for receiving a vertical rod or post 12,which may be secured to said brackets-by means of a set screw 14. A row of arms 16 provided with eyelets 13 and capable of carrying electrical controlling means or drop Wires of a stop motion for arresting the warper or beamer upon lbreakage of yarn, is mounted on each post 12. Fig. 2a illustrates thearrangement of the electrical controlling means in more detail. A drop wire 'I9 provided with an eyelet 8l for the passage of the yarn 8'! coming from the eyelet 18 of an arm 1S is swingably mounted on a rod 83 carried by a bracket 17 secured to the arm 16. Said rodv83 is electrically connected with one line l5 of an electric circuit vof the stop motion. A second rod 85 carried by an insulating element 13 mounted on the bracket Tl is electricallyconnected with a second line 'H of the electric circuit. Upon yarn breakage the drop wire 19 drops, swinging about the rod 83, until it abuts against Vthe Arod 85, thus causing a closing of the electric circuit of the stop motion, whereby, in a manner known per se, the warper or beamer is stopped. Said arms 16 are adjustable, and may be heldin an adjusted position by means of set screws 80. Said adjustable arrangement of thearm's :T6 Yon the parts 'I2 permits an adjustment of said arms in upward and downward direction vwhereby the drop wires 'I9 may be brought into a suitable plane with respect to the tensioning devices 64 and bobbing 1558. Furthermore, said adjustable arrangement ofthe arms 16 on the posts permits a swinging of said arms around said'posts'whereby they may be adjusted in such a position 'that the angle between the oncoming 'end ofthe yarn (coming rfrom vthe tensioning device) and the armandtheanglebetween the'leaving end of the '301 may be freely moved in sidewise direction. ll

4 yarn (travelling normally at an angle to the longitudina1 axis of the creel toward the warper or beamer) and the arm may be made of equal value so as to obtain a smooth running of the yarns.

A tension rack 301 of above-described construction is shiftably suspended from the transverse channels 40 and 50 on each side of the creelby'means of the spaced' engaging elements 66, slidably engaged with-saidchannels 40 and 50. As may be gathered from Fig. 2, the lower channels =60 of the tension racks 301 are at a distance from the floor, so that the tension racks It is emphasized, that the tension racks 301 do not form' a part of the supporting frame 28I proper,

so that a. displacement of the tension racks from one position' into another one may be easily car- `ried out witlfiout causing a weakening of the structure of the supporting frame.

The outermost position of the tension rack 3!)I is limited by stops 82, 84 on the transverse channels yMl'and 50 respectively, while the innermost position of the tension rack is limited by the upper longitudinal channel .32. The structure ofthe tensionrack abuts against said stops 82 and 84', or againstsaid upper channel 32 in one or the other ofsaid extreme positions.

The shiftable arrangement of the tension racks of the creel shown in Figs. `1-5 may bereadily used for a ne and accurate Vcontrol of the balloon 8B of the. yarns 81 drawn fromthe bobbins 48.` Asa matter of fact, yarns of Ydifferent weight and `quality form balloons of diiferent sizes. Consequently, it is desirable to change the distance between the carrying means-0r rods B2, carrying the yarn tensioning devices64, and the holding means or rods 44, holding the bobbins d8, in accordance with the sizeof the balloon 86v in such a manner, that the apex of the balloon substantially `coincides with a yarn receiving guiding aperture 89 of a yarn tensioning device 64.

As shown in Figs. 2-5, any arm 88 having a slot 93, is secured to the lower channel of the tension rack 301 by means of a screw 92 at each end thereof. Anvadjusting screw 94, passing through saidslot il!)I ofthe arm-88 is screwed intoV a threaded bore of the lower channel 34 of the supporting frame 281. As clearly shown in.Fig. 3, a scale 96 isv arranged along the slot 90.' Figs. 2 and 4 illustrate the tension racks 301 in their outermostposition. If the-creel is to be used for bobbins with yarn of different quality forming a balloon of diffe-rent size, the operator may readily shi-ft the tension racks into a different position, for example into the position shown in dash and dot lines in Fig. 2 and in full lines in Fig ..3 after-looseningthe adjusting or'positioning screw 94." According to instructions, given to the-operator, the operator determines'the. new position of the tensionwrack` Vby :means of/the scale 96, andwhen this new Vposition is reached, tha-screw -9-4 is tightened; `so fth'atthe tension rack 381 is held in the properpositionY As will be readily understood, the tension VVrack 3011'may be brought Yinto vany 'positionibetween its 'two extreme positions.

The construction of the tension racks 3611, 35H1, and 3IV of the sections II, III and IV substantially corresponds to the construction of abovedescribed tension rack 391 of the section I. The arms "98,' IglZ (seeFigs. 1, 4 and-5) which are `'secured to vertical bars,` mounted on the tension racks, 'carry onlyI eyelets for the passage of the yarns and are somewhat smaller than the arms 76 attached to the tension rack 301. Each of the tension racks 30H, 30H1, 301V is equipped with spaced hook-like engaging elements at opposite ends of its upper channel. The tension racks 30II are shiftably suspended from the transverse channels or tracks 50, 62by means of said engaging elements, the tension racks 30H1 are shiftably suspended from the transverse channels or tracks 52, 64 by such engaging elements, and the tension racks 801V are shiftably suspended from the transverse channels or tracks 54, 66 by means of such engaging elements.

If the four sections I, II, III, and IV are connected with each other as shown in Fig. 1, the creel may be used for a certain maximum capacity of bobbins. If, for a certain warping operation, a smaller amount of bobbins is to be held by the creel, the sections III and IV, for example, may be disengaged from sections I and II.

Figs. 6-9 illustrate a different type of a creel |04, a so-called truck creel, which is equipped with shiftably mounted tension racks |06, |68 according to the invention. ||0 generally indicates the supporting frame of the creel |04, which is built by a plurality of ,tubular members ||2, H4, H6, H8, |26, |22, |24, |26, |28, |30, |32, |34, |36, |38, |40, |42, |44, |46, |48, several transverse bars |60, |52, |64, |56, |58,

|60, and several transverse channels |62,` |64, |66, |66, |70, |72, |74, |76, rigidly connected with eachother in a suitable manner, so that this supporting frame forms a rigid structure or unit. Said supporting frame l0 is provided with guiding rails |78 for cooperation with trucks |80, carrying a plurality of bobbins |82, Said trucks, when loaded with full bobbins, may be rolled into the creel. When the bobbins are used up, the trucks may be removed, and may be returned into the creel when reloaded with fresh bobbins. According to Figs. 69, pairs of spaced tracks |84 are mounted on the transverse channels |62, |64, |70, and |72 of the supporting frame H0. Likewise, pairs of spaced tracks |86 are attached to the transverse channels |66, |68, |74 and |76 of the supporting frame H6. Above-mentioned sectional tension racks |06 are shiftably suspended from said pairs of tracks |84 on each side of the creel in a manner to be described hereinafter, and, likewise, the sectional tension racks |08 are shiftably suspended from said pair of tracks |80 on each side of the creel.

lAs best shown in Figs. 6-8, the tension rack |06 comprises an Iupper channel |88 and a, lower channel |90, rigidly connected with each other by a row of carrying means or vertical rodsv |92. Series of yarn tensioning devices or so-called tensions |94 (only one being slrown in Fig. 8) may be attached to said vertical rods |92 in a manner known per se. Furthermore, a bracket |06 is secured to the upper channel- |88, and a bracket |68 is secured to the lower channel |90. Said brackets have registering openings for receiving a rod or post 200, which may be secured to said arms |96 and |98 in any suitable manner, for example by a set screw. A row of adjustable arms 202, equipped with eyelets 204 and capable of carrying electrical control means for a stop motion is attached to said post 200; said arms 262 may be held in their adjusted positions by means of set screws. A pair of spaced plates 206 is secured to opposite ends of the upper channel |88 of the tension rack |06. A pair of Wheels 208 is journalled in suitable bearings of each of said plates 206. Said pair of plates 206 equipped with said wheels 208 form a carriage from which the tension rack`|06 is suspended.V The wheels 208 of said carriage are engaged with the tracks |84, so that the tension rack` |06 may be readily shifted in sideWise direction along said tracks |84. As will be apparent from above, the tension racks |06 secured to and suspended from said carriage form separate units as no element thereof forms a part of the supporting frame ||0 of the creel, so that said tension racks |06 do not causel a weakening of the frame structure when they are moved in different positions.

In order to assure a movement of the carriage 206, 208 and the tension rack |06 secured thereto ina straight line and to prevent a twisting of the carriage during a shifting of the tension rack |06 from one position into another one, the following controlling means are arranged. A shaft 2|0 journal1ed in suitable bearings of the plates 206 carries at each of its ends projecting from the plates 206 a pinion 2|2, keyedto said shaft 2|2).v Each of said pinions 2|2 is in mesh with a rack 2 |4, secured to one of thetransverse channels |62, |64, |70 or. |72. As Will be readily understood,this controlling mechanism 2|0, 2|2, 2|4, assures a uniform movement of both ends of the carriage 206, 208 andconsequently of both ends of the tension rack |06, when the latter is shifted in sidewise direction.

As best shown in Figs. 7 and 9, the outermost position of the. tension rack |06 is limited by a stationary' stop 2|6, arranged for` engagement with one of the 'wheels 208.V The Vinnermost position of the tension rack V|06 is limitedby an adjustable stop 2|8, arranged for engagement with the other .wheel 206. Said adjustable .stop 2 8 may be heldin any desired position by means of a set screw220 or the like, passing through a slot 222, arranged in the upperrail |84. A scale 224,v arranged on each side of the slot, may be used for Asetting the stop 2|8 in a predetermined position.

As best shown in Figs. 7 Vand 8, the lower channelV v|90V of the tension rack |06 is' at a distance from the floor, so that thev tension rack |06 may be freely moved along the tracks |64. If the creel is built for a large capacity of bobbins, the arms 202 must be made of a rather large size, so that a rather considerable weight acts on the post 200. In order to relieve the tension rack |06 from said weight, an armi224 carrying a supporting roller 226for engagement with the oor may Vbeadjustably mounted at the lower end of the post 200 and may be held in its position by means of set screws 228; Y I.

The construction and` arrangement of the sectionalv tensionracks 08 substantially. corresponds to above-described construction and arrangement of the sectional tension racks |06. The tension racks |08 are secured to and suspended from a carriage, formed by the pair of plates 230, carrying the Wheels 23,2. Said wheels 232 are engaged with the tracks |86 for movement along said tracks. The controlling means comp-rising a shaft 234 carrying pinions 236 in mesh with racks 238 assures a straight movement of the carriage 230, 232 along the tracks |86. A bracket 240,*secured to the upper channel 242 of the tension rack |08 and a bracket 244 secured to the lower channel 246 of the tension rack |08 carry a vertical bar 248 for the support of a row of arms 250, equipped with eyelets 252 for the passage of yarn.

The movable arrangement of the sectional tension racks |06, |08 in a truck creel of the type, shown in Figs. 7-9 serves two purposes, i. e. the

purpose of facilitating the loading of the creel epesses and the'purpose ofthecontrol of the-balloonfcf. the yarn.- Fig. 7 illustratesltheltensionracks'iil and |08 `in full -lines in operating position.Y VThe space'between therods=|82v-of the-tension rack- |B carrying theyarn tensioningy devices and the bbbins |82on the truck -lllas well aslthe space between 'the rods 254 of the tension rack 468, carrying the vyarn-tensioning devices .and .the bobbins |82on vthe truck -|8||.is ratherlvsmall, so that-therefis no access -riorthe operator. .tov enter the space between the yarn tensioningdevicesfand the -bobbins Therefore, if vthelv 'Creel' is.'toqbe loaded',` the Vtension racks I l 06 and. 1|.081are shifted; intoithe' position 1| 06. and |08? shown indash andi detlinesfinvr Fig, ...7.1 If the loading. operation is completed, `the `tension lracks |06` and `lllilf; are returned into their operating positionshownzn. full lines in Fig. 7. If the yarnspn theibobbins |82fo'rm aballoon requiring a .diilerentdistance of the tensioning .devices carried by the rods |92. and 254 respectively from the bobbins |821, held. bythe truck. |80, the adjustable ystop 21B: lis broughtinto. a Ydifferent position, for `example in the position AZlf, shown in Fig.-9.. In such. a case; the innermost. operating position of. the tensioniracks determined :bythe stop 110W being inf-the position 2.|.8.". lslat .a largerdistancerom the bobbins |82, so that for example the rods L|92 oi the tension rack',.|06 are in` theposition |92" shownindash andzdotlines in Fig. `9.

I have described preferred embodimentsof. my invention,` butit is understood that vnumerous changes; fand; iomissions may be made without departing fromv thespiritof my invention.

Forv example, a creel .of the .type shown in Figs. 7-,9cmay be .equipped with more thanftwo sectional tension kracks on each side thereof.

Furthermore, .other controlling means than thosegfshown in the drawings, may lbe. provided forqprerenting .a twisting ofthe. tension rack during a shifting thereof.

Moreover, :a creel of the type shown in Figs.

1-5 may be. equipped with tension racks, secured to. and suspended from acarriage of the type,` shown in Figs. 7-9, or-'else other sui-table means may be provided for to. prevent a .twistingof the' tension racks :inv a creel of .the type, Vshown :in Figs..';15.V

What .I claim is:

1. .In a creel with -holdingmeans for holding a plurality of bobbins, the combination of a sup-` porting frame, atleast one tension rack including carrying means for carrying a. plurality of )yarn tensioning devices, said tensio-n rack being shirt-.1 ably mounted on said supporting frame for an adjustment of the distance between said :holding means and said carryingmeans; a rod secured '-to said tension rack, and. a plurality of arms for carrying series of electrical controlling means of a stop motion, each of said arms beingadjustably mounted on said rod.

2. A creel comprising incombination: a plurality'of disconnectable supporting frame sections, means for connecting said supporting frame sections with eaeh other so as to form a supporting frameaassembly, atleast one series of holding meansarranged in each supporting frame section for holding a plurality ofbobbins, at least `one tension rack including a seriesof carrying means for carryinga plurality of lyarn tensioning devices associated `with each supporting frameY section, said Vtension racks being shiftably mounted on said supportingframe assembly for movingsaid yarn tensioning devices: relative to saidrbobbins, each of said. yarn-.tensioning devices. having an aperture for the. passage of'yarn .coming from a bobbin, .and .setting means including. position indicatingA means associated with each of .said shiftable tensionracks whereby thek latter with their carrying means may be set in sucha predetermined position relative to said holding means holding the bobbins that the apex of the balloon made by a yarn drawn from a bobbin substantially coincides with the position .of an aperture of a yarn tensioning device carried by such carrying means;

FRITZ LAMBACH.

REFERENCES CITED The following referencescare of record in the file ofthis patent:

UNITED STATES PATENTS Number Name DateV 585,266 Foster June 29, 1897 1,660,299 De Wolf Feb..21, 1928 1,678,975 Cocker July 31, 1928 1,885,114 Klein Nov. 1, 1932 2,013,770 Stein etal Sept. l0, 1935- 2,133,5.07 Guild Oct. 18., 1938 2,400,556 Lambach May 2l, 1946 FOREIGN PATENTS Number Country Date 6,653 Great :Britain .1914 185,912 Switzerland Dec. 1, 1.936 330,614 GreatBrtain June 10, `1930 435,244 Great Britain Sept. 17,1935 487,962 Great Britain" June 29, 193.8 669,537 Germany Dec. 30,1938 801,029 France May l1`, 1936.` 

